I'm gonna steal Neo's role as the devil's advocate here and ask exactly what the fuck it is your saying here.
I only agree with one thing about the whole review, and that's there's a lack of a team member who can take advantage of the function of Ice. While it could be a surprise, making your enemies guess that it's a hail team, I don't see why hail'd be a good thing to use on the team in the first place. Since this is a Christmas themed team, I do recommend added something that complements hail to your team.
Now for the rant part.
Falls flat on it's face? Can you even understand the synergy concepts of this team? Ditto is a marvel for taking down counters, and Gliscor is there to synergize with Heatran. In fact, it's godly, seeing as 4xing a Heatran due to it not having an Air Balloon is tempting, and it's a punch in the face when that Gliscor is switched into and gets to set up. Both are pretty vital on this team.
Oh, and you're being ridiculously vague with your recommendations? What dark type? And why are you recommending DITCHING pokemon because their nickname concept isn't "real"? The concept of an RMT is to point out the battling faults in the team, and you've barely managed to do so. And Christmas, if you haven't noticed, appeals to little kids who still believe that Santa is "real", and that it's part of the Christmas Spirit, which is what this whole team is based about.
Learn to RATE. You really need to.
My personal view is 9/10. It's a solid, powerful team who's only downfall is, really, the hail. Adding a beneficial Ice type such as Kyurem would ramp up your team quite a bit, especially since it'll have Tentacruel backing it up.